13

Figure 5. Transceiver Timing Diagrams (Module installed except where noted).

Tx_FAULT

t_init

Tx_DISABLE

TRANSMITTED SIGNAL

t_init

Tx_FAULT

Tx_DISABLE

TRANSMITTED SIGNAL

t-init: TX DISABLE NEGATED

t-init: TX DISABLE ASSERTED

Tx_FAULT

t_init

Tx_DISABLE

TRANSMITTED SIGNAL

t_off

Tx_FAULT

Tx_DISABLE

TRANSMITTED SIGNAL

t-init: TX DISABLE NEGATED, MODULE HOT PLUGGED

t-off & t-on: TX DISABLE ASSERTED THEN NEGATED

INSERTION

t_on

Tx_FAULT

OCCURANCE OF FAULT

t_fault

Tx_DISABLE

TRANSMITTED SIGNAL

Tx_FAULT

OCCURANCE OF FAULT

Tx_DISABLE

TRANSMITTED SIGNAL

t-fault: TX FAULT ASSERTED, TX SIGNAL NOT RECOVERED

t-reset: TX DISABLE ASSERTED THEN NEGATED, TX SIGNAL RECOVERED

t_reset

t_init*

* CANNOT READ INPUT...

Tx_FAULT

OCCURANCE OF FAULT

t_fault

Tx_DISABLE

TRANSMITTED SIGNAL

OPTICAL SIGNAL

LOS

t-fault: TX DISABLE ASSERTED THEN NEGATED,

TX SIGNAL NOT RECOVERED

t-loss-on & t-loss-off

t_loss_on

t_init*

t_reset

* SFP SHALL CLEAR Tx_FAULT IN

t_init IF THE FAILURE IS TRANSIENT

t_loss_off

OCCURANCE

OF LOSS